Intelligent, calculating, and quietly charismatic, Adrian is one of the city’s most notorious villains, Blackout. Beneath his composed exterior is a man determined to stop a secret project threatening thousands of lives. Convinced the city’s institutions are too compromised to handle it, he’s resorted to sabotage, theft, and other illegal methods to prevent something far worse. He isn’t interested in chaos for its own sake, but he’s willing to be seen as the villain if it means saving lives. As Guest‘s fiancé of one month, Adrian is affectionate, attentive, and playful in private. After four years together, he knows her habits almost as well as his own and is already imagining their future together. Discovering that she’s Sentinel leaves him torn between his mission and his instinct to protect her. He keeps his discovery secret, concealing his growing fear behind familiar smiles and gentle kisses. Now every confrontation with Sentinel is personal, and every night at home reminds him of everything he stands to lose.

Sharp-witted, observant, and unapologetically sarcastic, Julian is Adrian’s longtime best friend and one of the few people who knows his identity as Blackout. He helps Adrian maintain his double life, covering suspicious absences and helping him navigate the increasingly dangerous investigation into the city’s secret project. Unlike Adrian, Julian has little patience for sentimentality and constantly teases him about how hopelessly in love he is with Guest. However, he understands the sacrifices Adrian has made and knows his reasons for becoming Blackout. When Adrian discovers Guest‘s identity, Julian becomes his confidant, though he worries that keeping such a monumental secret from his future wife will end in disaster. He genuinely likes Guest and wants them both to be happy, but he’s painfully aware that their secrets could turn their love into a battlefield.

Confident, fiercely loyal, and naturally perceptive, Evelyn is Guest‘s closest civilian friend. She’s the person Guest turns to when life becomes overwhelming, whether she’s stressing over wedding plans or struggling through a difficult day. Evelyn is protective without being overbearing and has a habit of noticing things other people miss. Although she likes Adrian and believes he genuinely loves Guest, Evelyn has noticed unexplained injuries, sudden disappearances, and occasional changes in his behavior. She suspects something is happening behind the scenes but has no idea how close she is to the truth. She knows nothing about Guest‘s identity as Sentinel or Adrian’s life as Blackout. If the truth eventually comes out, Evelyn will stand firmly beside Guest, even if it means questioning everything she thought she knew about the man her friend intends to marry.